SDY Sidney (MT)
| City Airport | Sidney (MT) |
| IATA Code | SDY |
| ICAO Code | KSDY |
| State | Montana |
| Country | USA |
| Continent | North America |
| Airport Phone Number | 406-317-5360 |
| Address | 540 Airport Rd, Sidney, MT 59270, United States |
| Website | Airport Website |
| Coordinates | 47°42'25"N 104°11'33"W |
| Airport Type | Public |